Patna weather by month
Averages and records for each calendar month at Patna, India, from 1961 to 2025. The warmest month is May, averaging 37.7°C; the coolest is January at 22.1°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 22.1°C | 9.1°C | 29.3°C30 January 2008 | 0.0°C28 January 1975 | 28 / 55 |
| February | 26.6°C | 12.2°C | 39.0°C24 February 1991 | 3.0°C10 February 1974 | 18 / 55 |
| March | 32.3°C | 16.7°C | 41.4°C27 March 2010 | 8.0°C10 March 1979 | 25 / 55 |
| April | 37.2°C | 22.1°C | 45.0°C23 April 1980 | 15.1°C1 April 1983 | 23 / 55 |
| May | 37.7°C | 24.9°C | 45.6°C29 May 2005 | 18.0°C14 May 1980 | 26 / 55 |
| June | 36.5°C | 26.5°C | 46.1°C15 June 1995 | 19.3°C5 June 1996 | 23 / 55 |
| July | 33.3°C | 26.4°C | 42.2°C1 July 1962 | 20.0°C2 July 1977 | 27 / 54 |
| August | 33.1°C | 26.2°C | 39.9°C31 August 2002 | 21.6°C12 August 1987 | 24 / 55 |
| September | 32.7°C | 25.3°C | 39.0°C11 September 1980 | 20.2°C28 September 1986 | 24 / 54 |
| October | 32.1°C | 22.0°C | 39.2°C22 October 1994 | 13.7°C28 October 1983 | 24 / 52 |
| November | 29.1°C | 15.5°C | 35.1°C2 November 1990 | 8.0°C24 November 1975 | 24 / 54 |
| December | 24.7°C | 10.4°C | 33.9°C4 December 2014 | 4.0°C28 December 1998 | 21 / 54 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 18 to 28 years each.
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Climate at nearby stations
The closest stations with twelve months of archive of their own, nearest first.
Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.